The ß1 PdZn intermetallic of nominal 50:50 Pd:Zn at% was synthesized using an aerosol method. The aerosol method provided atomically mixed precursor oxy-nitrate powder that was then reduced to form ß1 PdZn, having a surface area amenable to catalytic measurements. Formation of the ß1 PdZn during reduction was found to occur rapidly (4 h) and at moderate temperature (500º C), serving to minimize the loss of volatile Zn. Chemical and structural characterization confirms that ß1 PdZn (95–99 wt% phase pure) of the same composition as the nitrate feedstock solution can be prepared using this method. Detailed structural analysis shows that this material contains little or no vacancies and minimal Pd/Zn disorder.
Revised: October 31, 2011 |
Published: February 3, 2011
Citation
Peterson E.J., B. Halevi, B. Kiefer, M.N. Spilde, A.K. Datye, J. Peterson, and L.L. Daemen, et al. 2011.Aerosol synthesis and Rietveld analysis of tetragonal (ß1) PdZn.Journal of Alloys and Compounds 509, no. 5:1463-1470. doi:10.1016/j.jallcom.2010.09.149